Sand-reel structure



May 28, 1929 R. R. BLos's E'r-AL SAND REEL STRUCTURE Filed Nov. 4, 1927 ATTORNEY.

Patented May 28, i929.

tutti RICHARD R. B-LOSS, ROY C. PFEIL, AND LMER B. MAURER, O F COLTJ'lVIIBIIIS,VV OHIO, AS- Y. SIGNORS TO THE INTERNATIONAL DEB/RICK Se EQUIPMENT, COMPANYfOF COLUM- BUS, OHIO, A CORPORATION -OF OHIO.

sANn-REEL STRUCTURE.

Original application led May 21, 1927, Serial No. 193,332. Dividedand this application led November 4, 1927. Serial No. 230,992.

Our invention relates to sand reel structures. It has to do with the provision of certain structural features which are used in connection with a sand reel and the operating mechanism therefor and which make possible further aims to provide a unitary driving andl braking mechanism which may either be installed as a part of a new sand reel or which may be installed upon a sand reel shaft which is already in use. In connection with the in,-

stallation of our unitary driving and braking' mechanism upon a sand reel shaft which is already in use, one of the objects of our invention is to provide a structure which is of proper dimensions to accommodate the already-existing space upon the majority of sand reel structures in use'and, at the same time, to form an efficient operating `mechanism.

Another feature of our invention resides in the provision of a clutch-operating mechanism which is separable into sections and thereby readily removable without first removing the clutch structure.` Thus, by removal of the sectional clutch-operating mechanism, it is possible to separate the parts of the clutch for repair or adjustment with a minimum of diiiiculty. v

Another feature. of nour invention resides in the fact that kwe have'provided a driving sprocket which is so mounted upon the band wheel shaft and has such parts associated therewith as to ensure proper alignment of the driving and driven sprockets of the sand reel structure without exceeding the space provided in the majority of units already eX- isting in the field. In order to obtain thisv proper alignment, then, at the same time,to provide a` structure capable of fitt-ing units already installed, we have devised a novel structure.

preferably sectional and readily removable or replaceable.

This sleeve is preferably secured against movement on the bandwheel shaft and it slidably supports a movable jaw clutch member which cooperates with clutch teeth upon the sprocket. This provide-s a compact and efficient structure which makes possible the proper alignment of the driving and driven sprockets of the sand reel structure and which does not enc-eed the space limits indicated.

This application is a divisionof our application filed May 2l, i927-, Serial No. 193,332, entitled Sand reel structure.

The preferred embodiment of our invention is shown in the accompanying drawings wherein similar characters designate corresponding parts and wherein: Figure lv is a perspective view, partly broken away, of the driving and braking unit which we preferably utilize in our invention.

Figure 2 is a perspective view of a part of the structure shown in Figure l and showing the driving member of the clutch slid out of operative relation to the driven member of the clutch, this being made readily ossible by removal of the sectional clutch-operating mechanism. i

Figure 3 is a longitudinal section showingA our clutch drum and means whereby the bore of the hub may be varied to accommodate various sand reel shafts.

Figure t is a sectional view taken on line l-t lof Figure 5 showing our 'driving sprocket and the clutch teeth thereon.

Figure 5 is a section taken on line 5-.5 of Figure t and illustrating the relative positions of the driving sprocket,the set collar, and the movable clutch member.

Figure 6 is a perspective view,par'tly in section, showing our sectional set collar .and the movable clutch member carried thereon.

In the drawings, our clutching andl braking unit is shown mounted upon a sand reel shaft l. It comprises, inv the form shown in Figure l, a hub meinber'2, radially extending flange of reference 3 and a channel rim 4. Surrounding and cooperating with the outer periphery of this rim is a brake band 5.

`The hub rmember 2 has a groove 6 in its interior surface and at its outer end for the reception of a key 7 which serves to prevent relative rotation between the shaft and drum. Lateral movement of the drum upon thc shaft is precluded by set screws as at 8.

The hub 2 carries a shoulder 9 and an inwardlyv extending cylindrical portion f 10 which is threaded at its inner end as at 11. This cylindrical portion 10 is adapted to receive and support a cylindrical hub member 12 of the driving clutch member. lt is provided with a radially extending integral flange 13 and radial arms 14. The flange 13 and the arms 14 carry eXpansible bands 15 and the vmechanisml for forcing these bands into and out of gripping relation to the internal periphery of the channel rim 4.

Adjacent itsI inner end, the hub member 12 of the driving clutch member is provided with a radial flange .15 having bolt holes therein for the reception of bolts 16. A sectional collar 17 is also provided and a sectional sprocket 18 is mounted between the flange vand the collar 17, the sprockets and the flange and collar being firmly bolted together by the bolts 16. t will be understood that the sprocket 18 is to be driven by a sprocket chain from the band wheel driving sprocket. This driving clutch member is held rmly upon the hub 10v of the driven clutch member by means of an internally threaded collar 19 which fits upon the threaded end 11 of the hub member 10.

ln this particular form of our invention,

. the brake bands are designed to be extender by leverage mechanism and retracted by springs in a manner more fully disclosed in our original application. This leverage mechanism is operated by slidable rods 2O whose outer ends are secured to the clutchoperating' means. This clutch-operating means takes the form of a sectional collar 21. It also comprises a radial flange 22 and a collar 23 which is channeled as, at 24 for the reception of the block 25 of a yoke lever 26. This entire structure issectional and is held together by bolts 27 passing through perforated lugs 28.

An advantageous characteristic of the sectional clutch-operating mechanism is illustrated inl Figure 2 of the drawings. In this igure it will beseen that the sectional col.- lar 25 has been 'removed without displacing the position of the spool. This has resulted in leaving sufficient room to slide the driving clutch member out of cooperative relation to the driven clutch member., In this position, the parts are readily accessible for relining the clutch bands, or for repairing or adjustingsuch parts as may need repair or adjustment and where such repair or adjust- `on by set screws 85.

ment cannot be made without separation of the clutch parts. It will be' understood that the movement of the driving member of the clutch to the position shown in Figure 2 was first made possible by removing the collar 19 from the threaded end of the hub extension 10.

It will be obvious that, with the parts in the position shown in Figure 1, the driving of the sprocket 18 from the band wheel shaft through the medium of a driving sprocket and a sprocket chain will result in rotation of the driving member of the clutch. Tf the clutch bands are in expanded position, this rotation of the driving member will be transmitted to the driven member of the clutch and this rotation will be imparted to the shaft 1. It will also be obvious that the sectional sprocket may be readily replaced when worn.

In the form shown in Figure 1, the hub 10 may be bored to accommodate standard size sand reel shafts. However, in the modification shown in Figure 3, we have provided a hub 10 which is removably connected Vto the flange 3 of a channel member 4'.. This hub member 10 may be varied as to bore as de` sired to accommodate any sand reel shaft llikely to be found in the field. It may be keyed to the shaft and held thereon by a set screw or set screws 8. Thus, by selecting a hub having a bore of the proper diameter to vlit the shaft on which themechanism is to be disposed, our driving and braking units may be applied to any sand reel shaft.

Rotation of the sprocket member 18 through the medium of a sprocket chain is effected by means of a sprocket 29 (see Figures 4 and 5). This sprocket is formed in half sections and ris mounted upon a band wheel shaft 30. In order to accommodate band wheel shafts of any size, the sprocket is provided with a bushing 31 that is likewise formed in sections and that may be given any desired bore suitable to the shaft to which it is to be applied. i

This driving sprocket is idly mounted upon the band wheel shaft and is provided on one face thereof with clutch jaws 32 for cooperation with a movable jaw clutch member 83. This movable'jaw clutch member 33 is channeled for the reception of suitable operating mechanism and it is splined upon a sleeve 34 which is keyed upon the band wheel shaft and `held against lateral movement there- Both the jaw clutch member 33 and the sleeve 34 are formed in 'sections and, 'there-- fore, are readily removable and replaceable, just as is the sprocket 29. Furthermore, the sleeve 34 prevents wobbling of they sprocket 29 and also prevents longitudinal movement of the shaft 30. n

It should likewise be noted that the mounting of the jaw clutch member upon the sleeve whichprevents longitudinal movement of the band wheel shaft and which prevents wobbling of the sprocket, so economizes space on the band Wheel shaft that our chain driven sand reel unit may be readily applied to drilling rig structures already existing without exceeding the space already provided therein. At the same time, proper alignment of the driving and driven sprockets of the band wheel structure can be obtained. This struc-k ture and the manner of mounting of these parts is novel and highly advantageous because it renders possible the ready adaptation of our chain driven sand reel to those drilling rig structures generally in usein the field today. Y v

It will be apparent that a number of advantages arise from the structures described. One of these advantages results from the fact that we have provided a single driving and braking unit which may be applied or removed as an entity and may be applied to sand reel shafts of different size.

that the readily removable sectional colvlarspermits movement of the clutch part tov position for relining of the clutch bands, repair or necessary adjustment without dismantling the entire sand reel.

Another feature of our invention arises from the fact that our sand reel may be seat ed in the same bearing used by friction drive sand reels, the clutching and brake assembly" being introduced to replace the brake and friction drum of a friction drive sand reel to convert it into a chain driven sand reel. n

Another feature of our invention results from the structure of the driving sprocket and its operating mechanism, together with the manner of mounting this structure. This structure is such that we are able to utilize the space normally taken up by the set collar commonly provided with the rig irons. By this method of construction, We are able to reduce the maximum distance required between the front jack-post bearing and the hub of the band wheel flange to l() inohes, as against l inches required by other chain driven sand reels at present onr the market. This permits the installation of our jaw clutch structure on a standard rig without moving the band Wheel along its shaft to provide additional space. Since any shift in the band wheel and its tug rim requires a corresponding shift of the bull Wheels, our structure isobviously an advantage on its initial as well as on all subsequentinstallations.

In addition, the essential units of our appa- Another` feature of advantage arises from the factratus are readily removable and may be readily transferred from one rig to another. Thus, one reel will serve a number of locations and the transfer can be made with a minimum of dificulty. Likewise, the rigid construction used makes for longevity and efficient operation. 4 f

Having thus described our invention, what we claim is:

l. Sand reel structure comprising a clutching and braking unit, and means for fitting said unitsl to different sized sand reel shafts.

2. Sand reel structure comprising a clutching unit, and means for fitting said unit to different sized sand reel shafts.

3. Sand reel structure comprising a braking unit and means for fitting said unit to different sized sand reel shafts.

4. Sand reel structure comprising a. clutchoperating collar having achanneled member and a flange formed thereon, all of said parts being separable into sections for ready applicatlon or removal.

5. A chain driven sand reel comprising a 1 band wheel shaft, a bearing therefor, a driving sprocket, a specing member between said driving sprocket and the band wheel, and aj movable clutch ,member slidably mounted upon said spacing member. Y

6. A chain driven sand reel comprising a band wheel shaft, a bearing therefor, a driving sprocket, a spacing member, and a movable clutch member slidably mounted upon said spacing member.

7. In a chain driven sand reel, a sectional spacing member and a sectional clutch member slidably mounted on said spacing member.

8. A chain driven sand reel comprising a driven clutch member, a driving clutch mem- RICHARD R. BLOSS. ROY C. PFEIL. Y ELMER B.l MAURER. 

